
Police chief Dan Mathews and his officers catch smugglers, hijackers and robbers.

In a tungsten mine, counterfeiters hide their plates in nitroglycerin, packed in suitcases when a gun-crazy man grabs the suitcases and flees, unaware of the explosives.

Motorcycle-riding armed robbers elude Highway Patrol roadblocks by loading their bikes into a closed truck driven by their leader.

Because of his wife's fears, Patrolman Ed Wylie resigns from the force after fellow officer Jerry March is killed in the line of duty.

Two brothers hijack a new-car carrier, planning to sell the cars to get cash to purchase a farm; when the driver dies from injuries sustained in the hijacking, they make a panic-stricken attempt to dispose of the evidence.